| 1 | #include "ZydecoCommon.hpp" |
| 2 | #include "GLTexture.hpp" |
| 3 |
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| 4 |
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| 5 | static Logger LOGGER("GLTexture"); |
| 6 |
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| 7 |
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| 8 | std::map<uint32_t, std::array<uint32_t, 3>> TEXTURE_FORMAT_LOOKUP = { |
| 9 | {GL_RGB32F, {GL_RGB, GL_FLOAT}}, |
| 10 | {GL_RGBA32F, {GL_RGBA, GL_FLOAT}}, |
| 11 | }; |
| 12 |
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| 13 |
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| 14 | GLTexture::GLTexture(uint32_t sized_format, void *data_source, uint32_t width, uint32_t height): |
| 15 | m_sizedFormat(sized_format), |
| 16 | m_baseFormat(TEXTURE_FORMAT_LOOKUP[sized_format][0]), |
| 17 | m_dataType(TEXTURE_FORMAT_LOOKUP[sized_format][1]) |
| 18 | { |
| 19 | glGenTextures(1, &m_glTextureID); |
| 20 | SetDataSourceAndReload(data_source, width, height); |
| 21 | assert(glIsTexture(m_glTextureID) == GL_TRUE); |
| 22 | assert(m_baseFormat == GL_RGBA); |
| 23 | assert(m_sizedFormat == GL_RGBA32F); |
| 24 | } |
| 25 |
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| 26 | GLTexture::~GLTexture() |
| 27 | { |
| 28 | glDeleteTextures(1, &m_glTextureID); |
| 29 | } |
| 30 |
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| 31 | uint32_t GLTexture::GetID() |
| 32 | { |
| 33 | return m_glTextureID; |
| 34 | } |
| 35 |
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| 36 | void GLTexture::SetDataSourceAndReload(void *data_source, int width, int height) |
| 37 | { |
| 38 | m_pDataSource = data_source; |
| 39 | m_width = width; |
| 40 | m_height = height; |
| 41 | ReloadFromDataSource(); |
| 42 | } |
| 43 |
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| 44 | void GLTexture::ReloadFromDataSource() |
| 45 | { |
| 46 | glBindTexture(GL_TEXTURE_2D, m_glTextureID); |
| 47 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT); |
| 48 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT); |
| 49 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); |
| 50 | glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); |
| 51 | glTexImage2D(GL_TEXTURE_2D, 0, m_sizedFormat, m_width, m_height, 0, m_baseFormat, m_dataType, m_pDataSource); |
| 52 | } |
| 53 |
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| 54 | void GLTexture::BindAsTexture(uint64_t texture_unit) |
| 55 | { |
| 56 | glActiveTexture(GL_TEXTURE0 + texture_unit); |
| 57 | glBindTexture(GL_TEXTURE_2D, m_glTextureID); |
| 58 | } |
| 59 |
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| 60 | void GLTexture::BindAsImage(uint64_t texture_unit) |
| 61 | { |
| 62 | glActiveTexture(GL_TEXTURE0); |
| 63 | glBindImageTexture(texture_unit, m_glTextureID, 0, false, 0, GL_READ_WRITE, m_sizedFormat); |
| 64 | } |
| 65 |
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Index